Machine for cutting brush.



G. E. ROOSB. MACHINE FOR CUTTING BRUSH.

APPLICATION FILED SEPT. 4, 1908.

Patented May 3, 1910.

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G. E. ROOSE. MACHINE FOR CUTTING BRUSH. APPLICATION FILED BEPT.4,1908.

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GUSTAVE E. ROOSE,'0F WETASKIWIN, ALBERTA, CANADA, ASSIGNOR OF ONE-HALFTO WILLIAM JAMES MCNAMARA, 0F WETASKIWIN, OANADA'.

MACHINE FOR CUTTING BRUSH.

Specification of Letters Patent.

Application filed September 4, 1908.

Patented May 3, 1910.

Serial No. 451,753.

To all whom it may concern:

Be it known that I, GUsTAvE E. Roosn residing at lVetaskiwin, in thedistrict 0' Wetaskiwin Province of Alberta, and Dominion of lanada, haveinvented new and useful Improvements in Machines for Cutting Brush, ofwhich the following is a specification.

My invention which will be hereinafter fully set forth and claimedrelates to implements for cutting down brush and shrub for parts ofwhich I have obtained a patent in Canada, No. 110,894, dated March 241th1908.

The object of my invention is a machine that will out brush and otherstrong growths on virgin or neglected lands.

Figure 1 is a plan of my improved brush cutting machine, parts beingbroken out to Fig. 2 is a side elevation of the same. Fig. 3 is atransverse section of the same, on line 33, Fig. 1 on a larger scale.Fig. 4 is a longitudinal section of part of the cutting table, on line4-4:, Figs. 1 and 3, on the same scale as Fig. 3. Fig. 5 is a plan ortop view of part of the cutting table on the same scale as Figs. 3 and4:, showing the frame work, and Fig. 6 is a detail.

A triangular frame work is formed of two longitudinallyrdisposed beams,A A joined at the forward end, 2, into a blunt apex and braced by crossbars, A A and A*. This frame is supported at the rear upon a pair ofwheels B, having deep flanges, 1), adapted to cut into the ground andthus resist the side thrust exerted by the oblique knife. These aremounted upon an axle, B journaled in bearings, B which are securedadjustably upon the beams A A. The feet, 6 of the brackets in which thebearings are formed have the boltholes, 3, slotted, as shown in Figs. 1and 6, one bracket transversely and the other longitudinally, enablingthe axle B to be set at different angles to the main frame, it beingnormally at a right angle to the inner beam A.

The front or nose is supported by a single wheel, C, which is alsoformed with a sharp tread ca able of cutting into the ground and thusreslsting lateral thrust. This wheel is journaled upon the lower crankedend of a vertical spindle D, turning in a bracket, E, upon the uppercranked end, d, of which spindle is journaled the end of the tongue,

F. The bracket E has a fiat foot, 0 bedded upon the beams A and A thebolts holding it passing through slotted bolt holes 4, in the foot,enabling a moderate adjustment.

G is the draft-rod; it is secured to the beam A toward the rear andpasses under the tongue F where it is held free in a link secured to thebracket E. A drivers seat, H, is provided and suitably secured upon theframe. A top board, I, acts as a floor upon the framework, forming acomplete platform and thus completes what may be termed the vehicle partof the implement for carrying the operating mechanism.

A cutting table is placed at one side of the vehicle above described andcarried by the same in a manner to be more fully set forth. It istriangular in plan, its apex being near the front or apex of thevehicle, one side carried close to the beam A and the side of thevehicle and the other holding the knife-bar presenting an oblique lineto the direction of the progress of the vehicle. A mode of constructionwhich may vary considerablyis shown for the sake of illustration inFigs. 3, 4 and 5.

To an angle-bar, J, are secured a number of transverse bars or ribs, Jvarying in length according to the distance of their position from theapex. To the outer ends of these ribs is secured the knife-bar, L, andto this the thin knife-blade K. J which may be in one piece with theribs J are secured to the vertical web of the angle-bar J to form asupport for a backboard, M, and a floor board, N, is carried by the ribsJ extending from the back-board to the knife-bar and forming a platformwith a plain uninterrupted surface but little higher than the cuttingedge of the blade K, which has, naturally, the lowest position. Theedges of the knife bar and top-board are chamfered, as at Z and 'n,Figs. 3 and 5, affording a gradual rise from the cuttin edge to the topN. Screws, L countersun are shown in Figs. 3 and 5, by which the blade Kis secured to the bar L, as it is desirable to hold the blade removablyfor sharpening and the like. The open spaces formed by the ribs Jbetween the knife bar L and the top N may be filled or made up in anydesired manner, as for instance by a strip secured to the bottom of thetop and forming part of its chamfered edge, n. The blade K may have bothedges sharpened, so that it Uprights,

drivers seat, is journaled 'in brackets, 1 secured to the cross bar A,-&1'ld-1tS crank arm, p, is turned at a right angle, p-arallel to,

but in the opposite direction of the shaft, as a *long crank pin, 10This latter extends under the cutting table I and is j ournaled to thesame in brackets, P P secured to oneof the:ribs J which is arranged tobeadjacent toit. This 'crank pin 0 passes closetothebottom-'of-the-angle+bar ;l, so asto'just clear 'thersame withoutcutting into itand thus impairing itsstrength and without the lowestpart of the -pin going-appreciably below the level of the cutting edgeof the knife blade K -and causing'anobstruction onthe stubs ofthe'brush. Said crank shaft P is =controlled by a lever, Q, made fastupon it and placed convenient to the-drivers seat.

It isprovided with the=usual catch block, 9, engagingthe-notches ofasector, R, so :as to "be secured in any desired position.

:The

other crank shaft =Pis in a1l=respects similar to the one described,being '=journaled in brackets P secured to the crossbar A and having acrank arm ,1), but its crank pin p being shorter, on account of 'thedecreased width of the cutting table where -it is journaled'in asimilar-manner in' brac'kets 1 P placed nearer together but alsosecuredto an adjacent rib J The two crank shafts I and P are connectedby a pitman, S engaged'bythe forkedends of a pair of' levers, Thus'bymeans of-the lever Q both the crank-shafts "P and P" 'may be "turned andthe cutting table 'may be raised or lowered to cut a longer or shorterstub or raised "high up when traveling from *place to place.

It will beobserved that the vehicle carrying the mechanism is long,narrow and low,

its width having relation to the counterweight of the'cutting tablewhile its length with the wheels at -the rear cutting into the ground,affords greater leverage against the side pressure exerted by thecuttingtable. Its triangular shape enables it 'to sheer into brush with reducedresistance.

said axle having cutting flanges, a guide wheel at the apexya. verticalspindle having a lower crank end upon which said guide wheel :isjournaled and an upper ".crank :end to which the :tongue :is pivoted, abracket secured adjustably near the apex of the .framesin which saidspindle is journaled, a draft-rod secured to said frame and held looselyby said bracket, a top upon "said frame forming a platform, a driversseat secured to said "frame, a triangular cutting table carriedvertically adjustable on one side of the frame and having its cutting*edge sloping "from the apex rearward :and outwardly, a cuttingblade attheedge-fof said table and means of raising "and lowering saidtable,substantiallyassetforth. 4

2. In a machine for -'cutting :brush, *the combination with along lowand narrow vehicle having wheels with cutting flanges at itsextremities, of a triangular cutting table having one side close to oneof the sides of I the vehicle, a "knife bar forming the outer obliquelyproj ecting edge of saidtable, a "knife bla'de secured "to :said bar, a*top on said table, a back board on the edge of said "table adj acent tothe' vehicle, and means for raising and lowering -said table,substantially as set .forth.

3. In a machine 'for -'cutting brush, the combination *with .a long lowand narrow vehicle substantially tri'angular in-plan hav- 1 ing wheelswith cutting flanges at itsiextremities, means of guiding and propellingthe same, crank shafts journaled transversely tosai'd vehicle and havinglong crankpins projecting at one side, means ofrocking one -of saidshafts, -means of connecting said shafts and-causing them to Pactinunrson,i-a triangular cutting table to the *bottom "of which saidcrankpin's arejjournaleda knifebar at theouteredge of said ta'ble"3118.52, knife blade secured to said -.bar,"substantiall-y asset forth.

4. "In a machine for cutting brushfthe combination with "a long low andnarrow vehicle substantially Ttriangular in plan'having wheels withcutting flanges "at its extremities, means of guiding and :propellingthe same, crank s'haftsj ournaled tran'sversely to sai'dvehicleandhavingcrank pins projectingat oneside, a hand'lever secured upononeof saidshafts, "a 'r'ocking lever secured 'upon each of said shafts,apitman connectingsaid rocking levers, .a triangular cutting tablecarried upon the crank 'pins aforesaid and which are journaled thereto,*a knife ba'r secured 'to the obliquely projecting edg'edf said tableand a double edged knife 'bl-a'de secured to "said knife bar,substantially as set forth.

-5. In a machine for "cutting brush, the combination of a long low andnarrow -=vehicle substantially triangular' inplanflraving wheels withcutting flanges at its extremities, an axle carrying the rear wheels,"bearings in "which said axle is journaled havin'g slotted holes intheir feet to allow adjust ment of their position on the frame, means ofguiding and propelling said vehicle, a triangular cutting table carriedat one side of said vehicle, a knife bar forming the outer obliquelyprojecting edge of said table, a knife blade secured to said bar andmeans of raising and lowering said table, substantially as set forth.

6. In a machine for cutting brush, the combination of a low vehiclesubstantially triangular in plan, an axle at the rear end carrying apair of Wheels with cutting flanges, a bracket secured adjustably at theapex of the vehicle and projecting obli uely forward on the obliquelyprojecting side of the vehicle, a spindle journaled upright in saidbracket and having two cran ed ends, a guide wheel with cutting rimjournaled upon the lower crank of said spindle and the vehicle tonguejournalecl upon the upper crank of said spindle, a triangular cuttintable carried at the straight side of sai vehicle and means for raisingand lowering said table, substantially as set forth.

In testimony whereof I affix my signature, in presence of twosubscribing witnesses.

G. E. ROOSE.

Witnesses:

ROSLYN S. SMITH, R. W. GIBBs.

